package chapter02;

import java.util.Scanner;

public class Example09 {
    public  static void main(String[] args) {
        int grade = 75;
        Scanner scl = new Scanner(System.in);
        grade = scl.nextInt();
        if (grade > 80) {
            System.out.println("改成绩的等级为优");
        } else if (grade > 70) {
                System.out.println("改成绩的等级为良");
        } else if (grade > 60) {
                System.out.println("改成绩的等级为中");
            } else {
                    System.out.println("改成绩的等级为差");
                }
            }
        }